libfprint
http://www.reactivated.net/fprint

libfprint is primarily licensed under the GNU LGPL. HOWEVER, THIS PRERELEASE
VERSION INCLUDES GPL CODE FROM LIBTHINKFINGER, therefore distribution is
subject to both the terms of the LGPL (see COPYING) *and* the GPL
(see COPYING.GPL).

libfprint includes code from NIST's NBIS software distribution:
http://fingerprint.nist.gov/NBIS/index.html
We include bozorth3 from the US export controlled distribution. We have
determined that it is fine to ship bozorth3 in an open source project,
see http://reactivated.net/fprint/US_export_control

At release time, I will contact libthinkfinger authors and see if they will
be happy to relicense. I expect they will.